*** This bug is a duplicate of bug 60868 ***
Thanks for your report. This was a gparted bug, namely bug 60868, and is
now fixed.
** Changed in: ubiquity (Ubuntu)
Sourcepackagename: ubiquity => gparted
** This bug has been marked a duplicate of bug 60868
gparted does not detect sdb
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Installation of Edgy on external USB disk
https://launchpad.net/bugs/64177